baber/WOPTO huggingface dataset:
Patent CA-2244395-A1 (CA)
Inventor: WILLIAMS THOMAS H
IPC: H04L27/26
Filed: 1998-07-30
Abstract: A digital transmission system that provides high immunity to rapidly changing multipath distortion by sending a first normal data block (220) followed by a second reciprocal data block (320) with the same random data in an inverted form. The second block of data is comprised of frequency components whose coefficients are the reciprocal of the frequency coefficients found in the equivalent terms in the first block. At the receive site, both blocks are received and transformed into the frequency domain. The frequency coefficients of the second block are divided into the corresponding frequency coefficient in the first block using complex arithmetic. The square root is taken on the product, yielding a de-ghosted normal block. If any of the frequency coefficients of the first block of data are zero, creating the reciprocal will involve division by zero. This problem is remedied by using a modulation system such as orthogonal frequency division multiplexing (OFDM) that can maintain control over coefficient values at all frequencies. A guard interval may be used with the data blocks. Forward error correction may be applied to the data to improve hit error rate performance with large echoes.
Patent CA-2246336-A1 (CA)
Title: Combinaisons a effets immunosuppresseurs comprenant un inhibiteur de cyclooxygenase-2 et un inhibiteur de leucotriene a4 hydrolase
Inventor: ANDERSON GARY
IPC: A61P37/08
Filed: 1997-02-11
Abstract: Traitement à l'aide d'un inhibiteur de cyclooxygenase-2 et d'un inhibiteur de leucotriène A¿4? hydrolase se révèlant utile pour parer au rejet du receveur d'organes transplantés et pour le traitement des maladies auto-immunes.
Patent CA-2246933-A1 (CA)
Title: Method and system for placing a purchase order via a communications network
Inventor: BEZOS JEFFREY P
IPC: G06Q10/00
Filed: 1998-09-11
Abstract: A method and system for placing an order to purchase an item via the Internet. The order is placed by a purchaser at a client system and received by a server system. The server system receives purchaser information including identification of the purchaser, payment information, and shipment information from the client system. The server system then assigns a client identifier to the client system and associates the assigned client identifier with the received purchaser information. The server system sends to the client system the assigned client identifier and an HTML document identifying the item and including an order button. The client system receives and stores the assigned client identifier and receives and displays the HTML document. In response to the selection of the order button, the client system sends to the server system a request to purchase the identified item. The server system receives the request and combines the purchaser information associated with the client identifier of the client system to generate an order to purchase the item in accordance with the billing and shipment information whereby the purchaser effects the ordering of the product by selection of the order button.
Patent CA-2247421-A1 (CA)
Inventor: PHAM HANG THANH
IPC: C08F8/20
Filed: 1997-03-05
Abstract: Fluorination processes using hydrogen fluoride-containing fluorinating agents that are safely and easily handled, transported, and stored and that also exhibit good reactivity are provided. More particularly, the invention provides processes for producing fluorinated products using fluorinating agents comprising hydrogen fluoride and a carrier that may be an acid salt or a water-soluble polymer.
Patent CA-2249160-A1 (CA)
Inventor: SUZUKI MASAKATSU
IPC: B66F9/24
Filed: 1998-10-01
Abstract: An apparatus for controlling pivoting of a forklift rear axle.  A hydraulic damper is arranged between a rear axle and a forklift body.  The damper includes two oil chambers.  The oil chambers are connected to a first passage and a second passage.  A two-way switch valve is arranged between the oil chambers.  The valve permits the flow of oil between the oil chambers and allows pivoting of the rear axle when opened.  The valve restricts the flow of oil between the oil chambers and prohibits pivoting of the rear axle thereby locking the rear axle when closed.  When the rear axle is released from a locked state, the valve repeats a valve cycle, which includes opening and closing the valve, to regulate the amount of fluid that flows between the chambers.  The valve is then kept in an opened state.  This prevents shock that may be produced by sudden tilting of the body when the rear axle is released from a locked state.
Patent CA-2251655-A1 (CA)
Title: In vivo gene transfer methods for wound healing
Inventor: GOLDSTEIN STEVEN A
IPC: C12N15/87
Filed: 1997-04-11
Abstract: The present invention relates to an in vivo method for specific targeting and transfer of DNA into mammalian repair cells. The transferred DNA may include any DNA encoding a therapeutic protein of interest. The invention is based on the discovery that mammalian repair cells proliferate and migrate into a wound site where they actively take up and express DNA. The invention further relates to pharmaceutical compositions that may be used in the practice of the invention to transfer the DNA of interest. Such compositions include any suitable matrix in combination with the DNA of interest.
Patent CA-2254769-A1 (CA)
Inventor: YOUNG JONATHAN R
IPC: A61K31/519
Filed: 1997-05-16
Abstract: Composés de formule (I) et leurs sels pharmaceutiquement acceptables, utiles comme antagonistes de la GnRH et pouvant en tant que tels être utilisés pour le traitement d'une variété d'états associés à l'hormone sexuelle tant chez l'homme que chez la femme.
Patent CA-2256243-A1 (CA)
Title: Arc fault detector with circuit interrupter and early arc fault detection
Inventor: BRADLEY ROGER M
IPC: G01R31/12
Filed: 1998-12-16
Abstract: An arc fault detector comprised as a stand alone unit and in combination with a ground fault circuit interrupter (GFCI) functions to provide protection from potentially dangerous arc fault conditions. When combined with a GFCI, the combination arc fault/ground fault circuit interrupter (AFCI/GFCI) provides protection from both arc fault and ground fault conditions. A single transformer is used to detect faults between neutral and ground and arc faults. An impedance splits the current flow into two portions so as to generate differential current proportional to the current flowing through the conductors. An early arcing detector periodically tests the AC line for high impedance between the device and a main breaker panel. The AFCI/GFCI device detects both AC line frequencies and high frequencies associated with arcing. Both average and instantaneous values of both AC line frequency and high frequency arcing signals are processed to generate an arc fault signal. The device allows the arc detector to differentiate between destructive high level arcing and low level arcing such as generated by typical household appliances and equipment. This serves to decrease the occurrence of false tripping. The device also includes a timer circuit, which permits the user to temporarily disable the arc detector, and includes communication means to permit the device to communicate the occurrence and location of the arc fault to a centralized monitoring station.
Patent CA-2258250-A1 (CA)
Title: Plan cartesien a usage multiple
Inventor: BLAH SAMIR
IPC: G09B19/02
Filed: 1999-01-08
Abstract: Dans un plan cartésien, on sait qu'il y a quatre quadrants séparés par deux axes perpendiculaires (axe vertical et axe horizontal). Présentement, pour tracer ce plan cartésien, on doit se servir d'une règle pour tracer les deux axes. Dans la présente invention, l'instrument appelé "PLAN CARTESIEN A USAGE MULTIPLE" est un instrument éducatif pour des cours de mathématiques (géométrie) et de physique de niveau primaire et secondaire qui permet de tracer un plan cartésien, des quadrilatères (rectangle, carré, trapèze, parallélogramme) et des triangles rectangles. Cet instrument permet aussi de représenter ou de repérer un point dans le plan cartésien et de transformer des figures géométriques par des isométries (translation et réflexion). Présentement, il n'existe pas sut le marché d'instruments géométriques permettant de construire avec exactitudes et rapidité des plans cartésiens, des graphiques et des figures géométriques. En effet, la présente invention possède deux fentes perpendiculaires graduées avec des nombres positifs et négatifs en centimètres et en pouces.
Patent CA-2258470-A1 (CA)
Inventor: SIMPSON HARVEY
IPC: F16B45/02
Filed: 1999-01-13
Abstract: A self locking snap hook that includes a central shank having an arch shaped hook member that defines a gateway opening at one end, a gate keeper enclosing the gateway opening, a locking lever to prevent the opening of the gate keeper, and a second locking mechanism having an engaged and a disengaged position such that when it is engaged it prevents the locking lever from being disengaged. Movement of the second locking mechanism between its engaged and disengaged positions requires the application of force and resulting movement in a direction other than that required to move the locking lever from its engaged to its disengaged position.
Patent CA-2261619-A1 (CA)
Inventor: DOUGHERTY JOSEPH P
IPC: C07F9/6512
Filed: 1997-07-25
Abstract: Novel compounds are provided that comprise esters of antiviral phosphonomethoxy nucleotide analogs with carbonates and/or carbamates having the structure -OC(R2)2OC(O)X(R)a, wherein R2 independently is H, C1-C12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro or OR3 in which R3 is C1-C12 alkyl; X is N or O; R is independently H, C1-C12 alkyl, aryl, alkenyl, alkynyl, alkyenylaryl, alkynylaryl, alkaryl, arylalkynyl, arylalkenyl or arylalkyl which is unsubstituted or is substituted with halo, azido, nitro, -O-, -N-, -NR4-, -N(R4)2- or OR3, R4 independently is -H or C1-C8 alkyl, provided that at least one R is not H; and a is 1 or 2, with the proviso that when a is 2 and X is N, (a) two R groups can be taken together to form a carbocycle or oxygen-containing heterocycle, or (b) one R additionally can be OR3. The compounds are useful as intermediates for the preparation of antiviral compounds or oligonucleotides, or are useful for administration directly to patients for antiviral therapy or prophylaxis. Embodiments are particularly useful when administered orally.
Patent CA-2261624-A1 (CA)
Inventor: JAKOBSEN LISBETH S
IPC: F01L3/12
Filed: 1997-07-31
Abstract: An outlet valve for combustion engines with a stem (2), a valve plate (4) with a seat (8) which divides the surface of the plate into a first and a second surface section (10, 12 resp.) which are located on the side of the plate (4) which faces towards and away from the stem (2) respectively. The stem (2) has a longitudinal first passage (6) for the supply of cooling air to the plate (4). In the plate (4) second passages (28) extend which communicate with the first passage (6) and which extend substantially radially outwards to near the seat (8), and which lead into the first surface section (10). A method for production of the valve comprises producing two plate parts (14, 16), and a number of channels (20) in one of the plate parts (14). The channels (20) extend radially from the centre of the plate part (14). In a plate part (14), which comprises the first surface section (10), there are provided a number of second passage sections (24), which lead into this surface section (10). The two plate sections (14, 16) are interconnected, whereby the plate part (16) which does not have the channels (20) closes these, thereby providing a first passage, which is closed in section, and one end of which communicates with the first passage (6), and the other end of which communicates with the second passage sections (24).
Patent CA-2262216-A1 (CA)
Inventor: EMMERSON DANA
IPC: B09B5/00
Filed: 1999-02-18
Abstract: A wheeled portable unitary apparatus is provided herein for disposing of hazardous light bulbs, e.g., fluorescent bulbs. The apparatus includes an open-topped, multi-compartmented container of cylindrical cross-section which are separated by an air permeable disc. The container includes an upper collection compartment, and a lower exhaust compartment. A lid is hingedly-connected to, and is adapted to cover, the top of the container. The lower surface of the lid is connected to a reduction chamber, the reduction chamber having an axial inlet means for a cylindrical bulb to be pulverized and an axial outlet means leading to the collection compartment. An electric motor which is provided with an on/off switch, is disposed within the reduction chamber and has a rigid unitary pulverizing blade secured to its drive shaft. The reduction chamber is bounded by an open bottom cylindrical protective guard. A cylindrical plastic insert covers the open top of the upper collection compartment and has an automatically-reclosable central opening therethrough through which the open bottom of the cylindrical protective guard sealingly projects. A cylindrical light bulb feed chute extends through the lid and is attached thereto, to feed cylindrical light bulbs to the reduction chamber. A disposable pulverized light bulb collection bag is selectively disposed within the upper collection compartment in air-sealed relationship to the open bottom of the cylindrical protective guard. A vacuum generator is operatively associated with the lower exhaust compartment to subject the lower exhaust compartment to sub-atmospheric pressure. The lower exhaust compartment also includes a filter member extending transversely across the compartment to divide that compartment into an upper vacuum chamber and a lower chamber. The upper vacuum chamber includes a vacuum hose connected between an upper radial outlet port and extending through the lid to communicate with the reduction chamber to purge any hazardous materials which may be within the reduction chamber into the upper vacuum chamber. The lower chamber includes filters across the lower radial outlet port, whereby the lower vacuum chamber discharges environmentally-clean gases to the environment.
Patent CA-2262617-A1 (CA)
Title: Nitrification inhibitors and the use of polyacids to treat mineral fertilizers containing a nitrification inhibitor
Inventor: RITTINGER STEFAN
IPC: C05G3/90
Filed: 1997-08-06
Abstract: The use of anorganic or organic polyacids to treat mineral fertilizers, in particular the use of polyacids as a mixture with at least one nitrification inhibitor to treat mineral fertilizers. The invention also concerns the use of selected pyrazole derivatives as inhibitors in mineral fertilizers ans as stabilizers for liquid manure or liquid fertilizer formulations, and the treated mineral fertilizers themselves, as well as new pyrazole derivatives that can be used as nitrification inhibitors in mineral fertilizers and as stabilizers in liquid manure or liquid fertilizer formulations.
Patent CA-2262967-A1 (CA)
Inventor: CHOU SHU HUI
IPC: B26B29/02
Filed: 1999-02-23
Abstract: A cutting device includes a cutting blade having a cutting edge, and a shell holding the cutting blade on the inside thereof. The shell has an outer edge, and has defined therein a chamber that encompasses at least a portion of the cutting edge of the cutting blade, as well as an insertion slot extending from the chamber to the outer edge of the shell.
Patent CA-2263076-A1 (CA)
Inventor: DALTON DAVID RICHARD
IPC: F21W107/13
Filed: 1997-08-13
Abstract: A portable lighting device (such as a bicycle lamp) may include the following:  an arrangement (illustrated) of light emitting diodes (38, 40, 42) at different angles to each other so that light can travel in at least two directions away from the lighting device; use of multiple images of at least one light emitting diode to present a more visible effect from one or more light emitting diodes; a body portion which will glow when internally generated light falls upon it; a main lamp and openings or channelling means so that light is also emitted from side portions; faired surfaces to facilitate the use of the lighting device in more than one situation; or a lens section having at least two side portions in optical communication with a light emitting diode.
Patent CA-2263415-A1 (CA)
Title: System and method for controlling a postage metering system using data required for printing
Inventor: PINTSOV LEON A
IPC: G06Q20/00
Filed: 1998-06-12
Abstract: A method for controlling a postage metering system (1) defines a first set of postage parameters P1, P2, P3 to Pn associated with the generation of postage evidence in a postage metering system (10) and then initializes the postage metering system (10) with a subset of the first set of postage parameters F1, F2, F3 to Fn. The subset F1, F2, F3 to Fn defines a combination of the postage parameters for which the generation of postage evidence is not authorized.  When a request for postage evidence is received, the request includes a second set of postage parameters P1, P2, P3 to Pn that are combined to form a postage parameter vector (PPV). The generation of postage evidence is inhibited when at least one of the postage parameters P1, P2, P3 to Pn in the second set matches one of the postage parameters in the first set F1, F2, F3 to Fn. When none of the postage parameters P1, P2, P3 to Pn in the second set matches one of the postage parameters in the first set F1, F2, F3 to Fn the requested postage evidence is generated. In an alternative method the subset defines a combination of the postage parameters for which the generation of postage evidence is authorized, and the requested postage evidence is generated when each of the postage parameters in the first set matches one of the postage parameters in the second set.
Patent CA-2267751-A1 (CA)
Inventor: GRANT ROBERT K
IPC: B66C23/42
Filed: 1999-03-31
Abstract: A crane structure for hoisting, holding and/or towing heavy loads is provided. The crane structure includes a frame, for example a wrecker truck chassis, a boom support assembly, and a pair of booms each having a first member pivotally mounted to the boom support assembly so that the first boom and the second boom are pivotal in parallel vertical planes. Each of the first boom and the second boom also has a fluid operable second member slidably received by the first member. A control system is in operative communication with the first boom, the second boom and a winch assembly to independently activate each second member to extend from and retract to its corresponding first member, to pivotally position each boom with respect to the frame, and to activate the winch assembly to retract and extend cables about free ends of the respective second members.
Patent CA-2269906-A1 (CA)
Inventor: GOODWIN JOHN C III
IPC: G06Q30/06
Filed: 1999-04-26
Abstract: A system and method of installing and removing shelf talkers which works in connection with electronic price labels. The system includes a bar code reader for reading first bar code labels of first items following installation of first shelf talkers, second bar code labels of a number of second items having second shelf talkers already installed, third bar code labels of third items following removal of third shelf talkers, and fourth bar code labels of a number of fourth items having fourth shelf talkers already removed, and for transmitting bar code information for the first, second, third, and fourth bar code labels and errors for the second and fourth items. The system further includes a computer for generating a list of the items including the first and second shelf talkers to be installed and the third and fourth shelf talkers to be removed, and for generating a report identifying placement of the first and second shelf talkers for the first and second items and the errors.
Patent CA-2273399-A1 (CA)
Title: Apparatus and method for detecting railroad locomotive turns by monitoring truck orientation
Inventor: HALVORSON DAVID H
IPC: B61L25/02
Filed: 1999-05-31
Abstract: An apparatus for determining the rotation of a wheel truck on a rail vehicle and further for determining the relative direction of motion of said truck with respect to said rail vehicle and further for determining the rate at which the truck moves with respect to the rail vehicle is disclosed, which is a low power radar sensor disposed underneath the rail vehicle and directed toward the truck. In a preferred embodiment, two sensors are shown which are disposed on opposite sides of the rail vehicle. The sensors are coupled with an onboard computing device and with other components of a train control system which can be used for precisely locating the train on closely spaced parallel tracks and further for updating and augmenting position information used by the train control system.      The system including GPS receivers and wheel tachometers for providing alternate sources of information for position determination.
Patent CA-2274940-A1 (CA)
Inventor: PASKIEWICZ RONALD
IPC: B60S13/02
Filed: 1999-06-16
Abstract: A support structure including a turntable, support platform, and a set of ramps. The ramps and support platform provide support for a two-wheeled vehicle. The entire apparatus swivels by means of the turntable at 360°, and the apparatus also has a set of retractable wheels which enable the apparatus to be rolled across a horizontal surface. Also the ramps fold up around the support frame for ease of storage.
Patent CA-2275540-A1 (CA)
Inventor: RUBEN STEVEN M
IPC: A61P43/00
Filed: 1997-12-18
Abstract: The present invention relates to a novel cerebellum and embryo specific (CESP) protein which is a member of the myocardial factor superfamily. In particular, isolated nucleic acid molecules are provided encoding the human CESP protein.  CESP polypeptides are also provided as are vectors, host cells and recombinant methods for producing the same.
Patent CA-2275579-A1 (CA)
Inventor: DENT PAUL W
IPC: H04L27/10
Filed: 1997-12-18
Abstract: A method and apparatus for predicting signal values for signals that have not yet been received wherein the information stream transmitted has been divided into a first stream and a second stream is disclosed. A first Q component is predicted based on values stored in a state memory for the first bit stream. A first I component is predicted using the first predicted Q component and a previous bit from the state memory for the first bit stream. Then, a second Q component is predicted based on values in the state memory for the second bit stream. A second I component is then predicted using the second predicting Q component and the previous bit from the second bit stream. The first I component and the second Q component are added to obtain a combined I value and the first Q component and the second I component are added to obtain a combined Q value. Finally, the combined I value, the combined Q value, and a channel coefficient inputted into a complex multiplier, wherein the complex multipler outputs a signal predicting value.